diff options
| author |   Manfred Spraul <manfred@colorfullife.com> | 2017-07-12 14:35:16 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-12 16:26:02 -0700 |
| commit | a2642f8770993a1598500bb6a8082b7c32faff8b (patch) | |
| tree | 426e3190b86cd610744d127ac43df1d8aa19c2a4 /ipc/msg.c | |
| parent | ipc/sem.c: avoid ipc_rcu_putref for failed ipc_addid() (diff) | |
| download | linux-dev-a2642f8770993a1598500bb6a8082b7c32faff8b.tar.xz linux-dev-a2642f8770993a1598500bb6a8082b7c32faff8b.zip | |
ipc/shm.c: avoid ipc_rcu_putref for failed ipc_addid()
Loosely based on a patch from Kees Cook <keescook@chromium.org>:
- id and error can be merged
- if operations before ipc_addid() fail, then use call_rcu() directly.
The difference is that call_rcu is used for failures after
security_shm_alloc(), to continue to guaranteed an rcu delay for
security_sem_free().
Link: http://lkml.kernel.org/r/20170525185107.12869-15-manfred@colorfullife.com
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc/msg.c')
0 files changed, 0 insertions, 0 deletions